Unitary dental apparatus



O. H. AND A. F. PIEPER.

UNITARY DENTAL APPARATUS.

APPLICAIION FILED SEPT- 5. 151:.

' ITTORIIE Patented Apr. 26, 1921.

b SHEETS-SHEET l.

0. H. AND A. F. PIEPER.

Patented Apr. 26, 1921.

5 SHEETS-SHEET Z.

3 L 1 1 a a; :1

f H I I a? f a G 5 J5 Z Z i M I s I A I 51 f V Q l I i a K I 6' j",

A I I 0 I /&'/ E i I 2.

I 4 1 l I z z i I x I J 21 I 1,315 44 w s." 5

"'J ZL J 5 1 0 g f z i I m l 2 q 26 it 40 wimp/rs mun nm 0. H. AND A. F. PIEPER.

UNITARY DENTAL APPARATUS.

APPLICAHON mm SEPT. 5,1911.

Patented Apr. 26, 1921.

muff

L n r. I I m! W61 l-mm ii 1: w E; E i i: i: igiis i: i

0. H. AND A. F. PIEPER.

umunv DENTAL APPARATUS.

APPLICATION FILED SEPT- 5. I912.

Patented A r; 26,1921.

5 $HEETS-SHEET 4.

IIHE

, NTOR 0. H. AND A. F. PIEPER.

UNITARY DENTAL APPARATUS.

APPLICAHON man SEPT. s. 1917.

1,376,356. Patented Apr. 26,1921.

5 SHEETSSHEET 5.

,q '7 E i t j ATTORNEYS ride an apparatus for the OSCAR Hr. WPIE'PEB AND ALYHONSE F. IIEPER. OF ROCHESTER, NEW YORK.

UNITABY DENTAL APPARATUS.

Application ma September 5, 1917.

ing drawings, forming a part of this specificat on, and to the referenc'e -numerals thereon.

()ur invention has for its object to pro use of dentists which will facilitate the performance of various operations, in which it is intended to bring numerous instruments and pieces of mechanism, which a dentist called upon to use most frequently, nearest at hand. \Vith this end in view we have provided a unitary structure in which various appliances are assembled in juxtaposition and mounted upon a'column, or standard, which may be located within easy reach of the opthe. side of the dental chair, said standard having certain novel features of construction whereby the electrical apparatus. such as the dental motor, and control circuits thereof, and other mechanisms, are associated conveniently with the mouth instruments. comprising the hot air syringe, mouth mirrors and cautery, and the low voltage erators position at devices employed for supplying current thereto together with the operating means therefor. To these and other ends the invention consists in certain improvements and combinations of parts, all as will described, the novel features being pointed out in the he hereinafter more" fully.

claims-at the end of theepecification.

In the drawin s: 1 Figure 1 isa ront elevation of a uni y apparatus constructed in accordance our present invention;

Figs. 2 and 3 are enlarged vertical sectional views taken on-the line 2"-2 of Fig. i, the former showing the upper portion of the apparatus and the latter the bottom thereof;

Fig. 4 is a detail rear elevation of the upper portion of the column, or pillar;

Fig. 5 is a similar 'view of the bottom half thereof; f

Fig. 6 is a top plan view of the column;

Specification 01 Letters Yatent.

and useful the column.

Patented Apr. 26, 1921.

Serial no. 189,825.

Fig. 7 is a horizontal sectional view taken on the line 7"--7" of Fig. 4:;

- Fig. 8 is a. similar view taken on'the line N Fig. 9 is a detail cross-sectional view taken on the line 99* of Fig. 4 illustrating the heaters for atomizer bottles;

Fig. 10 is a detail illustration of the switch mechanism for the circuit of said heaters on the line lO"---10"--of Fig. 9;

Fig. 11 is a rear view taken on the line 'l1'--11 of Fig. 10,

Fig. 12 is a detail sectional view of the upper end. of the motor supporting arm and the contacts in the motor circuit permitting the motor to be rotated.

Similar reference characters throughout the several drawings indicate similar parts.

i To facilitate the work of a dentist we have brought into close relationship in a single apparatus those deviceswfor which he/has as well as the waste pipe, having union, or joint connections by means of which they may be attached to the service pipes. of the building, arranged on the base of the column. where access may be conveniently had to them through a removable portion of the column. The hand instruments, such as the hot air syringe. the cautery, the examination lamp, and the air nozzle for the atoiniz ers, are supported above the top of the column. and the air pipes these various instruments are looped Within To this end the latter is made of sufficient. height to provide loops in sail cords of sufficient length to enable the apparatus to be located preferably at the left hand side of the operating chair in a position'facing the operator, so that he may easily reach one or another of the instruments and carry it to the point of operation, irrespective of the adjustment of the dental chair itself. 7

The column. or pillar, indicated by 1. refer-ably oval in cross section, as shown in Figs. 6 and 7, providing the parallel front and rear faces .3 and 3, the former carrying on its inner side the various parts and cord circuits for 1 i of -the electrical apparatus which will be mor fully described hereinafter, and the latter being provided with upper and lower 0 inings which are normally closed by the ovable panels 4 and 5. The column is provided at its top with the horizontal table portion 6, at the rear side of whlch is an upwardly extending offset top portion of the column comprising the front face 7 pro vided with a plurality of apertures, the sidr walls and the rear wall having an aperture normally closed the cover-plate 8. TlllS oflset portion provides a support for the air gages and certain devices indicating the electrical condition of the apparatus in a position where they can be observed by the operator at the moment an instrument is picket u or selected. 'A further function of the 0 set top portion is the provision of a support for clips, or holders, for the va rious instruments, indicated by 9 (Figs. 2 and 6).

The position which the column, or pillar, is i ,tendedto occupy with reference to the operating chair permits its further use as a support forthe usual cuspidor 10, and dental engine, or'motor 11, both of which are mounted upon hollow bracket arms, or supports, preferably'disposed at opposite sides of the column, one arm thus, serving to counterbalance the other. The arm which supports the cuspidor 10 is indicated by 12, and contains a water supply pipe 13 and the waste pipe 14, which may, or may not, be included'wholly within the column. In Fig. 5 we haveshownthe supply pipe located in the column, and the waste pipe disposed teriorly; but whichever way these pipes are arranged we prefer, for th sake of neatness and general appearance of the apparatus when set up, that the lower ends of these pipes be included within the column, and to this end a pedestal extension 15 is provided at one side for the accommodation of the unions, or pipe couplings, 13 and 14, as shown in 5.

Th motor supporting arm, as indicated by 16, extends upwardly and contains a plurality of motor circuit wires 17 (Fig.12), which terminate in a corresponding number of insulated contact rings 18, mounted on the reduce upper end of the arm, and held in place thereon by the nut 19. The memher carrying motor 141 indicated by 20. is attached to the motor at its pivotal point of support, 21, and curves ever-the, motor and extends downwardly and forwardly into the plane of the axis of the armature .22, thus maintaining the center of gravity in'alinement with the arm 16, and minimizing any, tendencyof the member 20 to bind in its hearing. The member 20 is also hollow, and at its lower end'fits over the cylindrical portion of the arm 16, formed by the contact rings 18, and contains a number of spring contacts, or brushes 18", from which corresponding wires 18 extend to the motor terminals. The brushes 18 are mounted on an insulating plate 20, contained in cnla rgement 20* formed at the lower end of the member 20, which is closed by detachable plate 20.

In order to support the various hand instruments which the dentist is required to use in th most accessible position we mount the rectangular instrument tray 23 on the jointed arms 23 and 23", and pivot the latter on the bracket 16, preferably at a point just below the end of the motor carrying member 20, as will be seen in Figs} and 12.

The particular selection of the air and electrimlly operated hand instruments which we prefer to provide, are a hot air syringe A, a cautery B, one hand piece C for miscclaneous detachable instruments, such as canal drier, antrum lamp, wax spatula, or bleacher point. The remaining instruments are the examination lam I) and the air nozzle E, which latter, it wi 1 be understood, is used in selective coiiperation of one of the plurality of atomizeis contain ing mouth washes, or antiseptic solutions The air pipes for the syringe A and the nozzle E and the cord circuits for syringe A,

and the remaining instruments B, C and D screws 30, which pass through ears on the plat and enter lugs formed within the col umn. The air pipes for the instruments A and E are indicated by a and c and the cord circuits for the instruments B, and D are indicated respectively as b, c and cl. The hot arr syringe A, which also comprises an electrical. heating element, has a cord cirouit, the conductors of which ass interiorly through the pipe a. These conductors are indicated by a in Fig. 2, and are shown as extendlng upwardly from the hindingpost 27 to the point of attachment to the latter with the soulgce of air suply.

The air is supplied to the pi as a and e under pressure from a suitab e reservoir (not shown) from which the pipe 31 passes into the bottom of the column, where it is provided with the union 31', opposite the lower opening in said column. From, this point the pipeCcontinucs upwardly as indiby 31, to a suitable filter 31, pref-. 'era'b'ly arranged exteriorly on the rear wall 3 of the column. so that the filtering medium ,therein may be easily replenished, as oocasion requires. From the filter the pipe continues, as indicated by 31", to the two regulating valves 32 and 33, connection with the latter being through a branch 31. The valves 32 and 33 are mounted on the side walls of the offset top portion of the column and are provided with regulatin knobs 32* and 33 respectively by means 0% higher air pressure may be reduced to the pressure which the operator may desire to use in operating instruments A and E. The hose flexible air pi es 0: and e are connected rcspectivel with t lie outlet ports of the reducin'g va ves, said connections being by ti'cularly in Figs. 2 and 4. The reducing valves 82 and 33 are arranged in the side walls of the oil'set portion of the column, and the air instruments A and E are located at the" opposite ends ofthe row of instrumentsfso that theair pipes, because of their reater bulk, may be disposed near the ateral edges of the column, the portions thereof leading downwardly from the air gages lying adjacent the front wall of the column and between it and the other devices sup orted thereon, while the upwardly exten ing loo )S of said air pipes are adjacent the rear wall of thecolumn. V In their upper course the air ipes a and e, are guided in apertures 29 ormed in ears at the rear corners of the plate 29.

Separate air gages Eeland 35, corresponding to reducing valves 32 and 33 are fitted intwo of the apertures in the front face 7 of the'ofl'set portion of the column. These ga es are connected with their respective va ves by pipes 34* and 35, and being adjacent the regulating valves and directly in rear of the air instruments they may be conveniently observed both when an instrument is selected and when the valve is regulated to increase, or decrease pressure. The lower ends of the guide rods 26, on which the counter balances for the cord circuits travel are supported by a plate 40, which is accessible through the opening at thebase of the column. It is secured by an upwardly extending flange 40 bolted to the lug 40", and by a similar flange 40 at its forward edge, which serves as a support for the lower end of the circui terminal board 41, the

, upper end of which. is rigidly bolted to the ear 41 projecting inwardly from the rear wall of the colummabove the lower opening.

he transformer which we have provided comprises the primary coils 42 and secondary coils 43 from which lead taps to switch terminals on a panel 44. which also supports the primary and secondary coils. and is attached permanently to studs 45 on the inner front face 2 of the column. Extending through thc latter are the concentrically a1-' ranged switch operating members G and H and I and J attached to the inner and which the means of the pipes 32 and 33, shown parouter switch arms g, h and i, res cctively. The switches G, H, I and J control-the voltage of current flowin through the cord circuits leading to the instruments A, B, C and D.

The main, or master switch. is indicated by K, which, it will be seen, in Fig. 1, QC on ice the upper left hand location on the co umn just below the top16. The main line conductors lead from t e terminal board 41 to the master switch; By closing its contacts all the other portions of the apparates are rendered serviceable, and by opening them the operator is assured that all current to the ap aratus has been cut oil. To afford a visua indication of the condition of the electrical apparatus the pilot light is is provided and associated with the switch K so that when the latter is closed the light is illuminated. .The pilot lamp is 8 preferably located in the top portion of the column in rear of the ilrperture k in the front wall 7, which, in ig. 1, will be observed is between the gages 34 and 35. When the switch K is operated to the closed 90 position the other apparatus may be brought into circuit by closing additional switches, the one for the low voltage instruments being indicated by L. Other switches in the order in which they appear. readin downwardl on Fig. 1 are as follows: for the ionization circuit; N, for the plug it to which a fan, or an extra motor may be attached; 0, for closing the circuit of the dental engine, or motor 11, in conjunction 100 with the usual foot controller attached at 0 by means of the cable 0' P, a circuit for'thc bottle heaters; Q and Il, are each switches which control circuits which may be idle and are provided for the accommodation 105 of additional apparatus which the operator may wish to control from the column. A number of fuse plugs indicated diagram maticall ,ia're' inserted at necessary points, and in ig,l are shown as being accessible at the front of the column for convenience in replacing them when occasion requires. The assembled apparatus'also embodies heaters 46, )referably arranged in pairs at opposite'si es of the column, which are adapted to receive atomiz er bottles, as will be understood. In Figs. 9, 10 and 11, the detail construction of one of these pairs of heaters is ,shown. comprising a bracket 47 having at its outer edge a laterally extendlug hollow arm 48. provided with collars 49 within which arefitted sleeves 50 provided with insulation and carrying the re-. sistance windings 51, which comprises the heating elements. The latter are surround- 25 ed by sheaths 52, which are united at their upper ends with the inner sleeves 50 by a collar 53. The opening in the arm 48 communicates with the interior of the he rcr, and leading therefrom is an opening 54,

mil points the pair of plug 55, which can be opened to drain the heater in the event fluid, or moisture, accumulates therein. The flow 0;; current through the heating coils 51 is controlled by a switch having three termias shown, with which cooperates a switch arm 56, adapted to be adjusted by handle which projects outwardly between heater cups. One end of the heating coil of each cup is connected by a wire 58 to one pole of switch 56 is connected bv the wire 59 with one pole of the master switch K.

The present invention provides a'means of locating in a most compact manner the low voltage electric instruments, air instru' ments and control devices for each, together with the high voltage the dental motor. and such other mechanisms as the dentist may wish to use, in a most convenient and accessible form, all combined into a unitary structure capable of adjustment as a whole at the side of the operating chair.

W 6 claim as our invention:

1. An assembled dental apparatus, comprising a hollow column. a plurality of mouth instruments located above the column each having an electric device, separate cord circuits for said devices looped within the column and having means for yieldingly retracting them, a voltage control device mounted within the column having circuit connections with said cords, and operating means for said voltage control device extendimgexteriorly of the column below the closed by a screw mouth instruments.

2. An assembled dental apparatus comprising a hollow column having a setback face and shelf at its upper end, mouth instruments normally positioned. in front of said face each having an electric device, a voltage control device within the column having an operating member projecting exteriorly of the column. cord circuits looped within the column and extending from said voltage device through said shelf to the electric devices of the several instruments and means projecting forwardly from said setback face for supporting the instruments when not in use.

3. An assembled dental apparatus comprising a hollow column having a top portion oil'set rearwardly and provided with apertures in its front face, a voltage control device within the colunm having a control member Iprojecting from the forward side of the co umn. a source of air pressure within the latter. a gage connected to said source and mounted in one of the apertures in said ofi'set top. a pilot lamp adapted to be lighted when the voltage device is in use and located opposite anothcr of said apertures, an air operated mouth instrument having an electric heating element located P and wiper apparatus, such as in front of the offset top, an air pipe leading from the source of air pressure to the instrument and looped within the column and a circuit leading from the voltage control device to the heating element.

4. In an assembled dental appliance, the combination with a hollow column substantially'oval in cross section having its rear wall provided with upper and lower openings, closures therefor, a voltage control device comprising mounting members secured to the inside of the front wall opposite the upper opening and having operating'memhers extending through the front wall,.a circuit terminal board located within the pedestal and accessible through the lower opening and having circuit connections with said voltage control device, uides extending vertically within the col per and lower supports therefor accessible through the corresponding column openings, a plurality of mouth instruments dis-V posed above the column each having an elec tric device, separate cord circuits looped within the column and connecting said do vices with the voltage control device, and counterbalances traveling on the guides and cooperating with the cords.

5. An appliance 'for dentists use comprising a hollow coiumn provided with a base openiug, hollow bracket arms thereon respectively supporting a dental motor and a cuspidor, water supply and waste pipes for the latter leading said opening in the column, a circuit wire terminal board within the column also accessible through said opening and circuit connections for the motor leading upwardiy within the column and through the motor supporting bracket.

0. An apparatus of the character described, comprising a holiow column composed of a main portion and an offset top portion comprising front and side walls provided with apertures, a series of air and electrical mouth instruments disposed transversely above the column in front of the top portion, the air ihstruments flanking the umn and up to its bracket arm and each having pipe unlons accessible through electrical instruments, a, source of air 5119- ply, pressure gages and pressure reduction valves mounted, respectively, on the front and side walls of said top portion connected with the source of air supply, air pipes connecting them with the air instruments extending within the column at opoosite sides thereof, a voltage control evice mounted within the column and supported on its front wall between said air pipes, and cord circuits connecting the electrical instruments and voltage control device,

7. Anapparatus of the character described, comprising a hollow column having an apcrturcd top wall, a series of air and electrical mouth instruments disposed transversely above the top wall, the air instruments flanliing the others, a voltage control device supported within'the column in spar-ed relation to the walls thereof," cord circuits leading from said devices through apcrturcs in the top wall to the electrical instruments and disposed centrally within the column and leading upwardly therefrom through apm'turcs in the top wall and conncctcd to the electrical instruments, and ail pressure pipes passing downwardly at the sides of the column, between the front wall and the voltage control device and upwardly in rear of the latter through aper tune in the top of the column to said air instruments.

8. A standard for dental instruments comprising an upright hollow support, a bracket arm for supporting a motor and instrument tray on one side of the support,

a bracket for a cuspidor on the other side oi the support, a plurality of instrument supports adjacent the top ot said support, a water supply pipe leading to said cuspidor. and electrical con-luctors leading to said motor and instruments, said supply pipe and conductors being concealed within the hollow support.

9. A dental equipment stand comprising a hollow support, a switch -arricd by said support, electrical conductors leading through said support to said switch, an elec trio-ally operated instrument, means for mounting said instrument exteriorly of said support. and a cord circuit connecting said instrument with said switch, said switch controlling the connections to said instrumcnt.

l. A dental equipment stand adapted to rest upon the floor comprising a hollow support, a switchboard carried by said support. elect ical conductors leading through said support to said switchlaaird, a plurality of electrically operated instruments, means for mounting said instruments upon said support cxtcriorly thereof, cord circuits conne ting said instruments with said switchboard. and means in said switchboard selec tively to control the connections to said instruments.

11. A dental equipment stand comprising a hollow support, a switchboard carried by said support, electrical conductors leading through said support to said switchboard, a plurality of electrically operated instruments, means for mounting said instruments upon said support exteriorly thereof, cord circuits connecting said instruments with an id switchboard, means .in said switchboard selectively to control the connections to said instruments, :1 cuspidor carried by said support, and a water supply pipe passing through said support and leading to said cuspidor, s 1:2. A dental equipment stand comprising a pedestal adapted to rest upon the floor, a dental motor carried by said pedestal, a switchboard carried by said pedestal, a plurality of electrically operated instruments,

,cord circuits connecting said instruments with said switchboard, means for carrying said nstruments upon said pedestal and a cuspidor carried by said pedestal.

[3. A dental equipment stand comprising a spittoon and a part embodying a SWltClF board, supported by a pedestal, electrical connecting means in the lower portion of said pedestal. connections from said. connecting means through said pedestal to. said switchboard. a plurality of instruments connected with said switchboard, and means on said first-named part arranged to selectively control said instruments.

'14. A dental equipment stand comprising a support, an air syringe adapted to be mounted on said support, an air tube leading through said support to said air s ringe, electrical heating means associate with said syringe, a switchboard carried by said support, a switch and a regulating resist ance in said switchboard connected with said electrical heatingmeans, and electrical conductors leading throiigh said support to said switchboard.

15. In a dental equipment, in combination. a support, a plurality of dental instruments mounted vupon said support, means For supplying electric current to said instruments, heater elements carried by said support and adapted to be connected with said current supplying means, and bottles adapted to be removably associated with said heater elements.

OSCAR H. PIEPER. ALPHONSE F. PIEPER. 

